[Matplotlib-users] some issues

[steve s. <el...@gm...>]

Hi

I like MPL very much since I'm used to MATLAB and it's fantastic plotting features
but I have 3 little issues (most likely newbie stuff :) to solve.

1.)
To change the backend interactively the MPL homepage suggests something like

	import matplotlib
	from pylab import *
	matplotlib.use(<backend-name-string>)
	plot(...); show()

But I found that whatever backend I tell MPL to use, it always uses the one defined in my .matplotlibrc.


2.)
When I start my Python shell (IPython, WinXP) and use MPL the 1st time in the session

	from pylab import *
	plot(...); show()

the plot window appears but I'm not able to type anything in the shell. I close the plot window and

	plot(...); show()

again. From now on I'm able to type in the shell. What's up?


3.)
I tried to plot a data set with 1024 points (shape(x) = shape(y) = (1024,)).

	plot(x,y)

which takes about 4 seconds to build up the plot (at least with the TkAgg backend). This is far to slow for me. What can 
I do?

Cheers,
Steve

-- 
Man is the best computer we can put aboard a spacecraft ... and the only one that can be
mass produced with unskilled labor.  - Wernher von Braun